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We study the prospects to measure the cosmic radio dipole by means of continuum surveys with the Square Kilometre Array. Such a measurement will allow a critical test of the cosmological principle. It will test whether the cosmic rest frame…

Cosmology and Nongalactic Astrophysics · Physics 2018-10-16 Dominik J. Schwarz , Carlos A. P. Bengaly , Roy Maartens , Thilo M. Siewert

Upcoming galaxy surveys with the SKA Observatory will detect neutral hydrogen (HI) across unprecedented volumes, and their scientific return will crucially depend on predictive models for HI observables. In this work, we present a framework…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-25 Joël Mayor , Marta Spinelli , Gabriella De Lucia , Robert Yates , Alexandre Refregier , Fabio Fontanot , Lizhi Xie , Michaela Hirschmann

The substantial decrease in star formation density from z=1 to the present day is curious given the relatively constant neutral gas density over the same epoch. Future radio astronomy facilities, including the SKA and pathfinder telescopes,…

Astrophysics of Galaxies · Physics 2016-07-27 Natasha Maddox , Matt J. Jarvis , Tom Oosterloo

The Square Kilometre Array (SKA) will be the largest radio telescope ever built, aiming to provide collecting area larger than 1 km$^2$. The SKA will have two independent instruments, SKA-LOW comprising of dipoles organized as aperture…

Solar and Stellar Astrophysics · Physics 2019-02-13 A. Nindos , E. P. Kontar , D. Oberoi

The Square Kilometre Array telescopes have recently started their construction phase, after years of pre-construction effort. The new SKA Observatory (SKAO) intergovernmental organisation has been created, and the start of construction…

Instrumentation and Methods for Astrophysics · Physics 2021-10-27 J. Santander-Vela , M. Bartolini , and , M. Miccolis , N. Rees

Having an accurate calibration method is crucial for any scientific research done by a radio telescope. The next generation radio telescopes such as the Square Kilometre Array (SKA) will have a large number of receivers which will produce…

Instrumentation and Methods for Astrophysics · Physics 2018-04-03 Ahmad Mouri Sardarabadi , Alle-Jan van der Veen , Léon V. E. Koopmans

At regime, SKAO is expected to provide the researchers with an annual amount of more than 700 hundred PB of data. The advanced analysis of all those data will take place within a network (SRCnet) of so-called SKA Regional Centres, which,…

Instrumentation and Methods for Astrophysics · Physics 2025-04-07 Andrea Possenti

The SKA will be transformational for many areas of science, but in particular for the study of neutron stars and their usage as tools for fundamental physics in the form of radio pulsars. Since the last science case for the SKA, numerous…

Instrumentation and Methods for Astrophysics · Physics 2015-07-17 Michael Kramer , Ben Stappers

In recent years cosmology has undergone a revolution, with precise measurements of the microwave background radiation, large galaxy redshift surveys, and the discovery of the recent accelerated expansion of the Universe using observations…

Cosmology and Nongalactic Astrophysics · Physics 2015-01-19 H. -R. Klöckner , D. Obreschkow , C. Martins , A. Raccanelli , D. Champion , A. Roy , A. Lobanov , J. Wagner , R. Keller

The SKA will be the largest radio astronomy observatory ever built, providing unprecedented sensitivity over a very broad frequency (50 MHz to 15.3 GHz). The SKA-Low (50 - 350 MHz), will be built at the MRO in Western Australia. It will…

Instrumentation and Methods for Astrophysics · Physics 2022-04-20 M. Sokolowski , S. J. Tingay , D. B. Davidson , R. B. Wayth , D. Ung , J. W. Broderick , B. Juswardy , M. Kovaleva , G. Macario , G. Pupillo , A. Sutinjo

HI intensity mapping is a new observational technique to survey the large-scale structure of matter using the 21 cm emission line of atomic hydrogen (HI). In this work, we simulate BINGO (BAO from Integrated Neutral Gas Observations) and…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-22 L. C. Olivari , C. Dickinson , R. A. Battye , Y-Z. Ma , A. A. Costa , M. Remazeilles , S. Harper

SKA (Square Kilometer Array), currently under design, will be a huge radio-astronomical facility, whose management will be performed by a suite of software applications called Telescope Manager (SKA TM) via the TANGO framework. In order to…

Instrumentation and Methods for Astrophysics · Physics 2019-02-21 Matteo Canzari , Matteo Di Carlo , Mauro Dolci , Riccardo Smareglia

With the evolution of radio astronomy, related education and training, the demand for scalable, efficient, and remote systems in data acquisition, storage, and analysis has significantly increased. Addressing this need, we have developed a…

Instrumentation and Methods for Astrophysics · Physics 2025-02-18 Anumanchi Agastya Sai Ram Likhit , Katta Naveen , B Arul Pandian , R Abhishek , Thiagaraj Prabu

The generation of a sky model for calibration of Square Kilometre Array observations requires a fast method of automatic point source detection and characterisation. In recent years, point source detection in two-dimensional images has been…

Instrumentation and Methods for Astrophysics · Physics 2016-11-02 Siamak Dehghan , Melanie Johnston-Hollitt , Christopher Hollitt

The Square Kilometre Array (SKA) is expected to start science operations in 2030 and by that time there could be up to 10$^5$ artificial satellites in Earth's orbit, comprising an increase of an order of magnitude compared to 2024. Most of…

Instrumentation and Methods for Astrophysics · Physics 2026-04-27 Nicolas Cerardi , Emma Tolley , Federico di Vruno

The Square Kilometre Array (SKA) project is an international effort to build the world's most sensitive radio telescope operating in the 50 MHz to 14 GHz frequency range. Construction of the SKA is divided into phases, with the first phase…

Instrumentation and Methods for Astrophysics · Physics 2018-07-31 Sascha Schediwy , David Gozzard

Tests of general relativity (GR) are still in their infancy on cosmological scales, but forthcoming experiments promise to greatly improve their precision over a wide range of distance scales and redshifts. One such experiment, the Square…

Cosmology and Nongalactic Astrophysics · Physics 2016-01-25 Philip Bull

Small satellites have proven to be viable Earth observation platforms. These satellites operate in regimes of increased trajectory uncertainty where traditional planning approaches can lead to sub-optimal task plans, limiting science…

Systems and Control · Computer Science 2019-05-07 Duncan Eddy , Mykel Kochenderfer

The Square Kilometre Array (SKA) is the largest radio interferometer under construction in the world. Its immense amount of visibility data poses a considerable challenge to the subsequent processing by the science data processor (SDP).…

Instrumentation and Methods for Astrophysics · Physics 2022-03-30 Qing-Wen Deng , Feng Wang , Hui Deng , Ying Mei , Jing Li , Oleg Smirnov , Shao-Guang Guo

The SKA and its pathfinders will enable studies of HI emission at higher redshifts than ever before. In moving beyond the local Universe, this will require the use of cosmologically appropriate formulae that have traditionally been…

Cosmology and Nongalactic Astrophysics · Physics 2018-02-14 Martin Meyer , Aaron Robotham , Danail Obreschkow , Tobias Westmeier , Alan Duffy , Lister Staveley-Smith